Nikon appears to have created a formidable camera for its target audience of sports, news and reportage photographers. It may be 2MP shy of the 18 million pixel Canon EOS-1DX, but it has the flexibility of the DX crop for more affordable extra reach when necessary and greater AF sensitivity. This is combined with comprehensive video functionality, compatibility with the fastest available memory cards what promises to be superb ergonomics.

Perhaps wisely given the fast approaching Olympics, which will be a key event for many existing D3S users, Nikon hasn't meddled too much with what is widely regarded as the best AF system around. Those considering for an upgrade will be looking for a smooth transition to a camera that they can master quickly to be at the top of their game for the summer.

The differences between the handling of the D3S and D4 are relatively minor, in that they shouldn't take too much getting used to, but we think they make a significant difference.

Our test of the Nikon D4 is on the way, but in the mean time we would like to share the resolution chart images and the noise and dynamic range results.

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